CVE-2026-105243

Published: Ott 06, 2026 Last Modified: Ott 06, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: low
Availability: none

Description

AI Translation Available

Insufficient Logging vulnerability in the EventLogAppender of Apache log4net.

Long messages were truncated to a fixed size that exceeds what the Windows Event Log accepts once the log and source names are counted, and the event log then stored nothing and reported nothing. A party whose data reaches a log message could suppress the whole record by making it long enough. Only applications on Windows that use EventLogAppender are affected.

This issue affects Apache log4net: from 1.2.9 before 3.5.0.

Users are recommended to upgrade to version 3.5.0, which fixes the issue.

778

Insufficient Logging

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Non-Repudiation
Potential Impacts:
Hide Activities
Applicable Platforms
Technologies: Cloud Computing, Not Technology-Specific
Likelihood of Exploit: Medium
View CWE Details
https://github.com/apache/logging-log4net/commit/28fbfb2567…
https://github.com/apache/logging-log4net/commit/28fbfb25678c48a8cc5bc9b94ead0d…
https://github.com/apache/logging-log4net/pull/315
https://github.com/apache/logging-log4net/pull/315
https://lists.apache.org/thread.html/jr6fj5skv1vnjbc9jmt8bp…
https://lists.apache.org/thread.html/jr6fj5skv1vnjbc9jmt8bp151p8ow1rp